In JBSourcery Tools--
change battery mods
change softkeys
Lockscreen Weather image changing
Status Bar icons(changes any images in system ui
Misc Icons(mods to change icons in framework)
Glow Dots(change color/shapes)
Lock Screen handle(change to many different images)
Animations(change transition animations)
Boot animations(change boot animations-also with audio)Over 200 boot animations(audio not implemented yet)
Change fonts
Most popular kernels available to flash right from the ROM
change the pull down images Now with ability to put your own custom imageand choose seperate for landscape and portrait.
Backgrounds image changing with ability to add your own
App manager(easily delete any app system or data, also recive much more info about apps)
Push notification(we will send you news,messages about the ROM right to the ROM-auto notification of new messages available)
Rom update(be notified of and install updates to the ROM right from the ROM no searching.
Miui root explorer with ROM
Theme manager(the first theme manage on any ICS ROM Full themes with previews)
Dev tools
Overclock settings controls
Spare parts
Terminal Emulator
Access to the secret testing menu
Wireless ADB
Block adds
Cache cleaner(app,sd,market history)
fix permissions
vm heap size
wipe battery stats
zipalighn
Build prop editor
Init.d controls(crons etc),
Kernel tweaks(fast charge,color mulitpliers,color gamma tunig, Voltage)
Extra apps-many other applications and updates easily installed with the touch of a button.
Mods-made or ported by team sourcery available for easy installs.

Most of these items are updated live and additions ,updates,changes are added frequently
Without user interaction each time you go to a section there may be new stuff.

And More!!!!!!!!!!

Automatic detection of phone from tools and now only shows items in tools for the particular phone. no more for maguro or toro comments

ability to set host name
changed mms JB message warning limits--i believe this is a safety thing so what we did was cut time to 15 minutes and upped to 60 messages.
above that youll get a warning.
Ability to have total transparent pull down-must have any custom pulldown ours or ours than move transparenty to 0 :)
No other rom gives this ability to turn off stock JB Dimmer on status bar to enable full tranparency.
lock screen up to 8 targets(sstill work in progres-some items like direct dial, and some others jsut wont show on home screen at this time)
updated apex launcher
some speed increases
external bluetooth GPS ability(settings in settings)
Browser--added user agent custom settings-so you can always have it request desktop versions etc
Many stock translation updates
many other tweaks.

New features since 2.2
Lock screens high or low rings, right or center placements for 8 lockscreen targets
lockscreen landscape ability
Now has aokp and CM style toggles use 1 or the other or both.
softkey changing now instant no system ui reboot
navbar ring targets. when long press and pull up you can now have 5 choices not just google.
ability to toggle alarm icon on status bar off
ability to turn off the bong when changing volumes
kill all button for recents
many mms enhancements and ability to delete message from pop up messages
many more options in contacts.
enhanced html5 and browser enhancements
magic control and tools layouts totally redone.
much better looking stock theme
ability to change nav bar colors
navbar height and width now no reboot neeed
power menu to choose what shows when you long press power
ability to remove softkeys and use power button to bring up your softkeys on long press power
signal and wifi styles and text color changes. ability to remove signal icons.
many speed and connection enhancements
ability to have transparent pull down and to have different pull downs for landscape and portrait.
more added to out info cneter easy access to file bugs or enhancements request.
Probably more but im tired! :)